${'str dd'?capitalize}
<#assign columnName='preNameNameCat'/>
<#list ["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"] as letter>
	<#assign columnName=columnName?replace(letter,"_"+letter)/>
 </#list>
 ${columnName} 